Porous ceramic material, solid electrolyte material as well as preparation method and lithium ion battery thereof

A solid electrolyte, porous ceramic technology, applied in ceramic products, secondary batteries, circuits, etc., can solve the problems of insufficient promotion of lithium ion conduction efficiency, stability, insufficient ion conductivity, and insufficient lithium ion conduction efficiency, and achieve good Lithium ion conductivity and stability, the effect of improving lithium ion conductivity and stability, and good lithium ion conductivity

Active Publication Date: 2019-11-01
深圳市富济新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a porous ceramic material to solve the technical problems that the existing porous ceramic material is used as a supporting substrate to promote the conduction efficiency of lithium ions insufficiently and the stability is insufficient
[0006] Another object of the present invention is to provide a solid electrolyte material and its preparation method to solve the technical problems of insufficient lithium ion conduction efficiency and insufficient stability of existing solid electrolyte materials
[0007] Another object of the present invention is to provide a lithium-ion battery to solve the technical problems of existing lithium-ion battery stability and insufficient ion conductivity

Method used

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  • Porous ceramic material, solid electrolyte material as well as preparation method and lithium ion battery thereof
  • Porous ceramic material, solid electrolyte material as well as preparation method and lithium ion battery thereof

Examples

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preparation example Construction

[0071] Another aspect of the present invention provides a method for preparing a solid electrolyte material, comprising the following steps:

[0072] S01: Put Li 7 La 3 Zr 2 o 12 100 copies, Li 7 La 3 Zr 2 o 12 For LiOH, La 2 o 3 and ZrO 2 Formed according to the chemical formula; Al 2 o 3 0.1~1.5 copies; Y 2 o 3 0.05~0.6 parts; Ta 2 o 5 0.8~5.6 parts; Ne 2 o 5 0.4~3.4 parts; CeO 2 0.02~0.2 parts; GeO 2 0.05 to 0.4 parts of sintering treatment, each of the raw materials is powder, to obtain a ceramic material precursor;

[0073] S02: pulverize the ceramic material precursor, and undergo secondary sintering to obtain a porous ceramic material;

[0074] S03: activating the porous ceramic material;

[0075] S04: Fill the pores of the activated porous ceramic material with an organic lithium ion compound and perform annealing treatment, the organic lithium ion conductor includes 30-50 parts by mass of polyvinylidene fluoride, 20-30 parts by mass Polyethy...

Embodiment 1

[0085] On the one hand, this embodiment provides a porous ceramic material, which is prepared by the following preparation method: weigh 700g of LiOH, 150g of La 2 o 3 and 200g of ZrO 2 The chemical formula of the powder composition ratio is Li 7 La 3 Zr 2 o 12 The composition of; and Al 2 o 3 0.1g, Y 2 o 3 0.05g, Ta 2 o 5 1g, Ne 2 o 5 2.4g, CeO 2 0.05g and GeO 2 The powder of 0.2g is uniformly dispersed and mixed by ball milling; the porous ceramic precursor is synthesized in an argon high temperature and high pressure sintering furnace. The temperature is 900°C, the argon pressure is 20MPa, and the sintering time is 3h.

[0086] The above-mentioned porous ceramic precursor is prepared into a uniform and dense powder by vibrating ball mill crushing and grinding, and then microwave sintered in a microwave sintering furnace, and the powder particles form sintering necks to form a bond to prepare a porous ceramic material. The microwave temperature is 900°C,...

Embodiment 2

[0096] On the one hand, this embodiment provides a porous ceramic material, which is prepared by the following preparation method: weigh 700g of LiOH, 150g of La 2 o 3 and 200g of ZrO 2 The chemical formula of the powder composition ratio is Li 7 La 3 Zr 2 o 12 Composition; Al 2 o 3 1g, Y 2 o 3 0.5g, Ta 2 o 5 2.3g, Ne 2 o 5 1.4g, CeO 2 0.02g and GeO 2 The powder of 0.1 g is uniformly dispersed and mixed by ball milling; the porous ceramic precursor is synthesized in an argon high-temperature and high-pressure sintering furnace. The temperature is 900°C, the argon pressure is 30MPa, and the sintering time is 5h.

[0097] The above-mentioned porous ceramic precursor is prepared into a uniform and dense powder by vibrating ball mill crushing and grinding, and then microwave sintered in a microwave sintering furnace, and the powder particles form sintering necks to form a bond to prepare a porous ceramic material. The microwave temperature is 900°C, and the s...

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Abstract

The invention provides a porous ceramic material, a solid electrolyte material as well as a preparation method and a lithium ion battery thereof. The solid electrolyte material is prepared by fillingpores in an oxide solid electrolyte ceramic layer with a solid organic lithium ion conductor, is free of liquid electrolyte or organic diaphragm, has the advantages of both of pure oxide solid electrolyte and organic polymer electrolyte, has very good lithium ion conductivity, has normal-temperature conductivity of 5-8*10<-2>S.cm<-1>, is free of liquid substance inside and is free of corrosiveness, deformation or expansion, and the composite solid electrolyte has no risk of combustion, firing, explosion or leakage.

Description

technical field [0001] The invention belongs to the field of batteries, and in particular relates to a porous ceramic material, a solid electrolyte material, a preparation method thereof, and a lithium ion battery. Background technique [0002] As a way of electrochemical energy storage, lithium-ion batteries are currently the most commercially used secondary batteries, and are widely used in electric vehicles, mobile phones, notebooks, unmanned aircraft, energy storage power stations, signal base stations, etc. At present, commercial lithium-ion batteries on the market generally use organic liquid electro-hydraulic, which has some disadvantages, such as easy to burn, and may leak electrolyte liquid, causing environmental pollution. At present, some shortcomings and safety issues of lithium-ion batteries need to be improved; therefore, the safety of lithium-ion batteries is the core issue that everyone is very concerned about. [0003] One way to improve the safety of lithi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/48C04B35/622C04B38/00H01M10/0525H01M10/056
CPCC04B35/48C04B35/622C04B38/0038H01M10/056H01M10/0525C04B2235/3203C04B2235/3227C04B2235/3225C04B2235/3217C04B2235/3251C04B2235/3229C04B2235/3287C04B2235/34C04B2235/5445C04B2235/5454C04B2235/656C04B2235/6567C04B2235/667C04B2235/66C04B2235/96Y02E60/10
Inventor 王田军陈彬胡延超徐斌李敏苗伟峰
Owner 深圳市富济新材料科技有限公司
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